Bayer also makes a pyrethrum-based (synthetic, I think) granular product for use on lawns for grubs and things and I have had good success with that. The important part is to water in well and thoroughly. I've quit using the "neo-nics". Also some products meant for drenching can work as well. Reading labels will help you decide which ones. I was desperate enough once to drench an entire small greenhouse. The best part was, it worked! Robin Hansen North Bend, OR on the southwest coast where it's pouring, as in 1 inch so far